[ViewVC] Diff of: cvs/gvpe/src/conf.C

Comparing gvpe/src/conf.C (file contents):
Revision 1.3 by pcg, Sun Mar 9 12:40:18 2003 UTC vs.
Revision 1.54 by root, Tue Feb 15 13:31:23 2011 UTC

…		…
1	/*	1	/*
2	conf.c -- configuration code	2	conf.c -- configuration code
3	Copyright (C) 1998 Robert van der Meulen	3	Copyright (C) 2003-2008 Marc Lehmann <gvpe@schmorp.de>
4	1998-2002 Ivo Timmermans <ivo@o2w.nl>
5	2000-2002 Guus Sliepen <guus@sliepen.eu.org>
6	2000 Cris van Pelt <tribbel@arise.dhs.org>
7	2003 Marc Lehmann <pcg@goof.com>
8		4
		5	This file is part of GVPE.
		6
9	This program is free software; you can redistribute it and/or modify	7	GVPE is free software; you can redistribute it and/or modify it
10	it under the terms of the GNU General Public License as published by	8	under the terms of the GNU General Public License as published by the
11	the Free Software Foundation; either version 2 of the License, or	9	Free Software Foundation; either version 3 of the License, or (at your
12	(at your option) any later version.	10	option) any later version.
13		11
14	This program is distributed in the hope that it will be useful,	12	This program is distributed in the hope that it will be useful, but
15	but WITHOUT ANY WARRANTY; without even the implied warranty of	13	WITHOUT ANY WARRANTY; without even the implied warranty of
16	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the	14	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
17	GNU General Public License for more details.	15	Public License for more details.
18		16
19	You should have received a copy of the GNU General Public License	17	You should have received a copy of the GNU General Public License along
20	along with this program; if not, write to the Free Software	18	with this program; if not, see <http://www.gnu.org/licenses/>.
21	Foundation, Inc. 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA	19
		20	Additional permission under GNU GPL version 3 section 7
		21
		22	If you modify this Program, or any covered work, by linking or
		23	combining it with the OpenSSL project's OpenSSL library (or a modified
		24	version of that library), containing parts covered by the terms of the
		25	OpenSSL or SSLeay licenses, the licensors of this Program grant you
		26	additional permission to convey the resulting work. Corresponding
		27	Source for a non-source form of such a combination shall include the
		28	source code for the parts of OpenSSL used as well as that of the
		29	covered work.
22	*/	30	*/
23		31
24	#include "config.h"	32	#include "config.h"
25		33
26	#include <cstdio>	34	#include <cstdio>
31	#include <netdb.h>	39	#include <netdb.h>
32	#include <sys/stat.h>	40	#include <sys/stat.h>
33	#include <sys/types.h>	41	#include <sys/types.h>
34	#include <unistd.h>	42	#include <unistd.h>
35		43
		44	#include "netcompat.h"
		45
36	#include <openssl/err.h>	46	#include <openssl/err.h>
37	#include <openssl/pem.h>	47	#include <openssl/pem.h>
38	#include <openssl/rsa.h>	48	#include <openssl/rsa.h>
39	#include <openssl/rand.h>	49	#include <openssl/rand.h>
40		50	#include <openssl/bn.h>
41	#include "gettext.h"
42		51
43	#include "conf.h"	52	#include "conf.h"
44	#include "slog.h"	53	#include "slog.h"
45	#include "util.h"	54	#include "util.h"
46		55
47	char *confbase;	56	char *confbase;
48	char *thisnode;	57	char *thisnode;
49	char *identname;	58	char *identname;
50	char *pidfilename;
51		59
52	struct configuration conf;	60	struct configuration conf;
53		61
54	configuration::configuration ()	62	u8
		63	best_protocol (u8 protset)
55	{	64	{
56	init ();	65	if (protset & PROT_IPv4 ) return PROT_IPv4;
57	}	66	if (protset & PROT_ICMPv4) return PROT_ICMPv4;
		67	if (protset & PROT_UDPv4 ) return PROT_UDPv4;
		68	if (protset & PROT_TCPv4 ) return PROT_TCPv4;
		69	if (protset & PROT_DNSv4 ) return PROT_DNSv4;
58		70
59	configuration::~configuration ()	71	return 0;
60	{
61	cleanup ();
62	}	72	}
63		73
		74	const char *
		75	strprotocol (u8 protocol)
		76	{
		77	if (protocol & PROT_IPv4 ) return "rawip";
		78	if (protocol & PROT_ICMPv4) return "icmp";
		79	if (protocol & PROT_UDPv4 ) return "udp";
		80	if (protocol & PROT_TCPv4 ) return "tcp";
		81	if (protocol & PROT_DNSv4 ) return "dns";
		82
		83	return "<unknown>";
		84	}
		85
		86	static bool
		87	match_list (const vector<const char > &list, const char str)
		88	{
		89	for (vector<const char *>::const_iterator i = list.end (); i-- > list.begin (); )
		90	if ((i)[0] == '' && !(*i)[1])
		91	return true;
		92	else if (!strcmp (*i, str))
		93	return true;
		94
		95	return false;
		96	}
		97
		98	bool
		99	conf_node::may_direct (struct conf_node *other)
		100	{
		101	if (match_list (allow_direct, other->nodename))
		102	return true;
		103
		104	if (match_list (deny_direct, other->nodename))
		105	return false;
		106
		107	return true;
		108	}
		109
		110	conf_node::~conf_node ()
		111	{
		112	#if 0
		113	// does not work, because string pointers etc. are shared
		114	// is not called, however
		115	if (rsa_key)
		116	RSA_free (rsa_key);
		117
		118	free (nodename);
		119	free (hostname);
		120	free (if_up_data);
		121	#if ENABLE_DNS
		122	free (domain);
		123	free (dns_hostname);
		124	#endif
		125	#endif
		126	}
		127
		128	void
64	void configuration::init ()	129	configuration::init ()
65	{	130	{
66	memset (this, 0, sizeof (*this));	131	memset (this, 0, sizeof (*this));
67		132
		133	mtu = DEFAULT_MTU;
		134	nfmark = 0;
68	rekey = DEFAULT_REKEY;	135	rekey = DEFAULT_REKEY;
69	keepalive = DEFAULT_KEEPALIVE;	136	keepalive = DEFAULT_KEEPALIVE;
70	llevel = L_INFO;	137	llevel = L_INFO;
		138	ip_proto = IPPROTO_GRE;
		139	#if ENABLE_ICMP
		140	icmp_type = ICMP_ECHOREPLY;
		141	#endif
71		142
72	default_node.port = DEFAULT_PORT;	143	default_node.udp_port = DEFAULT_UDPPORT;
		144	default_node.tcp_port = DEFAULT_UDPPORT; // ehrm
73	default_node.connectmode = conf_node::C_ALWAYS;	145	default_node.connectmode = conf_node::C_ALWAYS;
74	default_node.compress = true;	146	default_node.compress = true;
75	}	147	default_node.protocols = 0;
		148	default_node.max_retry = DEFAULT_MAX_RETRY;
		149	default_node.max_ttl = DEFAULT_MAX_TTL;
		150	default_node.max_queue = DEFAULT_MAX_QUEUE;
		151	default_node.if_up_data = strdup ("");
76		152
		153	#if ENABLE_DNS
		154	default_node.dns_port = 0; // default is 0 == client
		155
		156	dns_forw_host = strdup ("127.0.0.1");
		157	dns_forw_port = 53;
		158	dns_timeout_factor = DEFAULT_DNS_TIMEOUT_FACTOR;
		159	dns_send_interval = DEFAULT_DNS_SEND_INTERVAL;
		160	dns_overlap_factor = DEFAULT_DNS_OVERLAP_FACTOR;
		161	dns_max_outstanding = DEFAULT_DNS_MAX_OUTSTANDING;
		162	#endif
		163
		164	conf.pidfilename = strdup (LOCALSTATEDIR "/run/gvpe.pid");
		165	}
		166
		167	void
77	void configuration::cleanup()	168	configuration::cleanup ()
78	{	169	{
79	if (rsa_key)	170	if (rsa_key)
80	RSA_free (rsa_key);	171	RSA_free (rsa_key);
81		172
82	free (ifname);
83
84	rsa_key = 0;	173	rsa_key = 0;
85	ifname = 0;	174
		175	free (pidfilename); pidfilename = 0;
		176	free (ifname); ifname = 0;
		177	#if ENABLE_HTTP_PROXY
		178	free (proxy_host); proxy_host = 0;
		179	free (proxy_auth); proxy_auth = 0;
		180	#endif
		181	#if ENABLE_DNS
		182	free (dns_forw_host); dns_forw_host = 0;
		183	#endif
		184	free (script_if_up); script_if_up = 0;
		185	free (script_node_up); script_node_up = 0;
		186	free (script_node_change); script_node_change = 0;
		187	free (script_node_down); script_node_down = 0;
86	}	188	}
87		189
88	void	190	void
89	configuration::clear_config ()	191	configuration::clear ()
90	{	192	{
91	for (configuration::node_vector::iterator i = nodes.begin(); i != nodes.end(); ++i)	193	for (configuration::node_vector::iterator i = nodes.begin(); i != nodes.end(); ++i)
92	delete *i;	194	delete *i;
93		195
94	nodes.clear ();	196	nodes.clear ();
95		197
96	cleanup ();	198	cleanup ();
97	init ();	199	init ();
98	}	200	}
99		201
100	void configuration::read_config (bool need_keys)	202	#define parse_bool(target,name,trueval,falseval) do { \
		203	if (!strcmp (val, "yes")) target = trueval; \
		204	else if (!strcmp (val, "no")) target = falseval; \
		205	else if (!strcmp (val, "true")) target = trueval; \
		206	else if (!strcmp (val, "false")) target = falseval; \
		207	else if (!strcmp (val, "on")) target = trueval; \
		208	else if (!strcmp (val, "off")) target = falseval; \
		209	else \
		210	return _("illegal boolean value, only 'yes\|true\|on' or 'no\|false\|off' allowed. (ignored)"); \
		211	} while (0)
		212
		213	const char *
		214	configuration_parser::parse_line (char *line)
		215	{
		216	{
		217	char *end = line + strlen (line);
		218
		219	while (*end < ' ' && end >= line)
		220	end--;
		221
		222	*++end = 0;
		223	}
		224
		225	char *tok = line;
		226	const char *var = strtok (tok, "\t =");
		227	tok = 0;
		228
		229	if (!var \|\| !var[0])
		230	return 0; /* no tokens on this line */
		231
		232	if (var[0] == '#')
		233	return 0; /* comment: ignore */
		234
		235	char *val = strtok (NULL, "\t\n\r =");
		236
		237	if (!val \|\| val[0] == '#')
		238	return _("no value given for variable. (ignored)");
		239
		240	if (!strcmp (var, "on"))
		241	{
		242	if (!::thisnode
		243	\|\| (val[0] == '!' && strcmp (val + 1, ::thisnode))
		244	\|\| !strcmp (val, ::thisnode))
		245	return parse_line (strtok (NULL, "\n\r"));
		246	else
		247	return 0;
		248	}
		249
		250	// truly global
		251	if (!strcmp (var, "loglevel"))
		252	{
		253	loglevel l = string_to_loglevel (val);
		254
		255	if (l == L_NONE)
		256	return _("unknown loglevel. (skipping)");
		257	}
		258	else if (!strcmp (var, "ip-proto"))
		259	conf.ip_proto = atoi (val);
		260	else if (!strcmp (var, "icmp-type"))
		261	{
		262	#if ENABLE_ICMP
		263	conf.icmp_type = atoi (val);
		264	#endif
		265	}
		266
		267	// per config
		268	else if (!strcmp (var, "node"))
		269	{
		270	parse_argv ();
		271
		272	conf.default_node.id++;
		273	node = new conf_node (conf.default_node);
		274	conf.nodes.push_back (node);
		275	node->nodename = strdup (val);
		276
		277	{
		278	char *fname;
		279	FILE *f;
		280
		281	asprintf (&fname, "%s/pubkey/%s", confbase, node->nodename);
		282
		283	f = fopen (fname, "r");
		284	if (f)
		285	{
		286	node->rsa_key = RSA_new ();
		287
		288	if (!PEM_read_RSAPublicKey(f, &node->rsa_key, NULL, NULL))
		289	{
		290	ERR_load_RSA_strings (); ERR_load_PEM_strings ();
		291	slog (L_ERR, _("unable to open public rsa key file '%s': %s"), fname, ERR_error_string (ERR_get_error (), 0));
		292	exit (EXIT_FAILURE);
		293	}
		294
		295	require (RSA_blinding_on (node->rsa_key, 0));
		296
		297	fclose (f);
		298	}
		299	else
		300	{
		301	slog (need_keys ? L_ERR : L_NOTICE, _("unable to read public rsa key file '%s': %s"), fname, strerror (errno));
		302
		303	if (need_keys)
		304	exit (EXIT_FAILURE);
		305	}
		306
		307	free (fname);
		308	}
		309
		310	if (::thisnode && !strcmp (node->nodename, ::thisnode))
		311	conf.thisnode = node;
		312	}
		313	else if (!strcmp (var, "private-key"))
		314	free (conf.prikeyfile), conf.prikeyfile = strdup (val);
		315	else if (!strcmp (var, "ifpersist"))
		316	parse_bool (conf.ifpersist, "ifpersist", true, false);
		317	else if (!strcmp (var, "ifname"))
		318	free (conf.ifname), conf.ifname = strdup (val);
		319	else if (!strcmp (var, "rekey"))
		320	conf.rekey = atoi (val);
		321	else if (!strcmp (var, "keepalive"))
		322	conf.keepalive = atoi (val);
		323	else if (!strcmp (var, "mtu"))
		324	conf.mtu = atoi (val);
		325	else if (!strcmp (var, "nfmark"))
		326	conf.nfmark = atoi (val);
		327	else if (!strcmp (var, "if-up"))
		328	free (conf.script_if_up), conf.script_if_up = strdup (val);
		329	else if (!strcmp (var, "node-up"))
		330	free (conf.script_node_up), conf.script_node_up = strdup (val);
		331	else if (!strcmp (var, "node-change"))
		332	free (conf.script_node_change), conf.script_node_change = strdup (val);
		333	else if (!strcmp (var, "node-down"))
		334	free (conf.script_node_down), conf.script_node_down = strdup (val);
		335	else if (!strcmp (var, "pid-file"))
		336	free (conf.pidfilename), conf.pidfilename = strdup (val);
		337	else if (!strcmp (var, "dns-forw-host"))
		338	{
		339	#if ENABLE_DNS
		340	free (conf.dns_forw_host), conf.dns_forw_host = strdup (val);
		341	#endif
		342	}
		343	else if (!strcmp (var, "dns-forw-port"))
		344	{
		345	#if ENABLE_DNS
		346	conf.dns_forw_port = atoi (val);
		347	#endif
		348	}
		349	else if (!strcmp (var, "dns-timeout-factor"))
		350	{
		351	#if ENABLE_DNS
		352	conf.dns_timeout_factor = atof (val);
		353	#endif
		354	}
		355	else if (!strcmp (var, "dns-send-interval"))
		356	{
		357	#if ENABLE_DNS
		358	conf.dns_send_interval = atoi (val);
		359	#endif
		360	}
		361	else if (!strcmp (var, "dns-overlap-factor"))
		362	{
		363	#if ENABLE_DNS
		364	conf.dns_overlap_factor = atof (val);
		365	#endif
		366	}
		367	else if (!strcmp (var, "dns-max-outstanding"))
		368	{
		369	#if ENABLE_DNS
		370	conf.dns_max_outstanding = atoi (val);
		371	#endif
		372	}
		373	else if (!strcmp (var, "http-proxy-host"))
		374	{
		375	#if ENABLE_HTTP_PROXY
		376	free (conf.proxy_host), conf.proxy_host = strdup (val);
		377	#endif
		378	}
		379	else if (!strcmp (var, "http-proxy-port"))
		380	{
		381	#if ENABLE_HTTP_PROXY
		382	conf.proxy_port = atoi (val);
		383	#endif
		384	}
		385	else if (!strcmp (var, "http-proxy-auth"))
		386	{
		387	#if ENABLE_HTTP_PROXY
		388	conf.proxy_auth = (char )base64_encode ((const u8 )val, strlen (val));
		389	#endif
		390	}
		391
		392	/* node-specific, non-defaultable */
		393	else if (node != &conf.default_node && !strcmp (var, "hostname"))
		394	free (node->hostname), node->hostname = strdup (val);
		395
		396	/* node-specific, defaultable */
		397	else if (!strcmp (var, "udp-port"))
		398	node->udp_port = atoi (val);
		399	else if (!strcmp (var, "tcp-port"))
		400	node->tcp_port = atoi (val);
		401	else if (!strcmp (var, "dns-hostname"))
		402	{
		403	#if ENABLE_DNS
		404	free (node->dns_hostname), node->dns_hostname = strdup (val);
		405	#endif
		406	}
		407	else if (!strcmp (var, "dns-port"))
		408	{
		409	#if ENABLE_DNS
		410	node->dns_port = atoi (val);
		411	#endif
		412	}
		413	else if (!strcmp (var, "dns-domain"))
		414	{
		415	#if ENABLE_DNS
		416	free (node->domain), node->domain = strdup (val);
		417	#endif
		418	}
		419	else if (!strcmp (var, "if-up-data"))
		420	free (node->if_up_data), node->if_up_data = strdup (val);
		421	else if (!strcmp (var, "router-priority"))
		422	node->routerprio = atoi (val);
		423	else if (!strcmp (var, "max-retry"))
		424	node->max_retry = atoi (val);
		425	else if (!strcmp (var, "connect"))
		426	{
		427	if (!strcmp (val, "ondemand"))
		428	node->connectmode = conf_node::C_ONDEMAND;
		429	else if (!strcmp (val, "never"))
		430	node->connectmode = conf_node::C_NEVER;
		431	else if (!strcmp (val, "always"))
		432	node->connectmode = conf_node::C_ALWAYS;
		433	else if (!strcmp (val, "disabled"))
		434	node->connectmode = conf_node::C_DISABLED;
		435	else
		436	return _("illegal value for 'connectmode', use one of 'ondemand', 'never', 'always' or 'disabled'. (ignored)");
		437	}
		438	else if (!strcmp (var, "inherit-tos"))
		439	parse_bool (node->inherit_tos, "inherit-tos", true, false);
		440	else if (!strcmp (var, "compress"))
		441	parse_bool (node->compress, "compress", true, false);
		442	// all these bool options really really cost a lot of executable size!
		443	else if (!strcmp (var, "enable-tcp"))
		444	{
		445	#if ENABLE_TCP
		446	u8 v; parse_bool (v, "enable-tcp" , PROT_TCPv4, 0); node->protocols = (node->protocols & ~PROT_TCPv4) \| v;
		447	#endif
		448	}
		449	else if (!strcmp (var, "enable-icmp"))
		450	{
		451	#if ENABLE_ICMP
		452	u8 v; parse_bool (v, "enable-icmp" , PROT_ICMPv4, 0); node->protocols = (node->protocols & ~PROT_ICMPv4) \| v;
		453	#endif
		454	}
		455	else if (!strcmp (var, "enable-dns"))
		456	{
		457	#if ENABLE_DNS
		458	u8 v; parse_bool (v, "enable-dns" , PROT_DNSv4, 0); node->protocols = (node->protocols & ~PROT_DNSv4) \| v;
		459	#endif
		460	}
		461	else if (!strcmp (var, "enable-udp"))
		462	{
		463	u8 v; parse_bool (v, "enable-udp" , PROT_UDPv4, 0); node->protocols = (node->protocols & ~PROT_UDPv4) \| v;
		464	}
		465	else if (!strcmp (var, "enable-rawip"))
		466	{
		467	u8 v; parse_bool (v, "enable-rawip", PROT_IPv4, 0); node->protocols = (node->protocols & ~PROT_IPv4 ) \| v;
		468	}
		469	else if (!strcmp (var, "allow-direct"))
		470	node->allow_direct.push_back (strdup (val));
		471	else if (!strcmp (var, "deny-direct"))
		472	node->deny_direct.push_back (strdup (val));
		473	else if (!strcmp (var, "max-ttl"))
		474	node->max_ttl = atof (val);
		475	else if (!strcmp (var, "max-queue"))
		476	node->max_queue = atoi (val);
		477
		478	// unknown or misplaced
		479	else
		480	return _("unknown configuration directive. (ignored)");
		481
		482	return 0;
		483	}
		484
		485	void
		486	conf_node::finalise ()
		487	{
		488	if (max_queue < 1)
		489	{
		490	slog (L_WARN, _("%s: max-queue value invalid, setting it to 1."), nodename);
		491	max_queue = 1;
		492	}
		493
		494	if (routerprio > 1 && (connectmode != C_ALWAYS && connectmode != C_DISABLED))
		495	{
		496	//slog (L_WARN, _("%s: has non-zero router-priority but either 'never' or 'ondemand' as connectmode, setting it to 'always'."), nodename);
		497	connectmode = C_ALWAYS;
		498	}
		499	}
		500
		501	void
		502	configuration_parser::parse_argv ()
		503	{
		504	for (int i = 0; i < argc; ++i)
		505	{
		506	char *v = argv [i];
		507
		508	if (!*v)
		509	continue;
		510
		511	char *enode = v;
		512
		513	while (enode != '.' && enode > ' ' && enode != '=' && enode)
		514	enode++;
		515
		516	if (*enode != '.')
		517	enode = 0;
		518
		519	char *wnode = node == &conf.default_node
		520	? 0
		521	: node->nodename;
		522
		523	if ((!wnode && !enode)
		524	\|\| (wnode && enode && !strncmp (wnode, v, enode - v)))
		525	{
		526	const char *warn = parse_line (enode ? enode + 1 : v);
		527
		528	if (warn)
		529	slog (L_WARN, _("%s, while parsing command line option '%s'."), warn, v);
		530
		531	*v = 0;
		532	}
		533	}
		534	}
		535
		536	configuration_parser::configuration_parser (configuration &conf,
		537	bool need_keys,
		538	int argc,
		539	char **argv)
		540	: conf (conf),need_keys (need_keys), argc (argc), argv (argv)
101	{	541	{
102	char *fname;	542	char *fname;
103	FILE *f;	543	FILE *f;
104		544
105	clear_config ();	545	conf.clear ();
106		546
107	asprintf (&fname, "%s/vped.conf", confbase);	547	asprintf (&fname, "%s/gvpe.conf", confbase);
108	f = fopen (fname, "r");	548	f = fopen (fname, "r");
109		549
110	if (f)	550	if (f)
111	{	551	{
112	char line[16384];	552	char line[16384];
113	int lineno = 0;	553	int lineno = 0;
114	char var, val;	554	node = &conf.default_node;
115	conf_node *node = &default_node;
116		555
117	while (fgets (line, sizeof (line), f))	556	while (fgets (line, sizeof (line), f))
118	{	557	{
119	lineno++;	558	lineno++;
120		559
121	{	560	const char *warn = parse_line (line);
122	char *end = line + strlen (line);
123		561
124	while (*end < ' ' && end >= line)	562	if (warn)
125	end--;	563	slog (L_WARN, _("%s, at '%s', line %d."), warn, fname, lineno);
126
127	*++end = 0;
128	}
129
130	char *tok = line;
131
132	retry:
133	var = strtok (tok, "\t =");
134	tok = 0;
135
136	if (!var \|\| !var[0])
137	continue; /* no tokens on this line */
138
139	if (var[0] == '#')
140	continue; /* comment: ignore */
141
142	val = strtok (NULL, "\t\n\r =");
143
144	if (!val \|\| val[0] == '#')
145	{
146	slog (L_WARN,
147	_("no value for variable `%s', at '%s' line %d"),
148	var, fname, lineno);
149	break;
150	}
151
152	if (!strcmp (var, "on"))
153	{
154	if (!::thisnode
155	\|\| (val[0] == '!' && strcmp (val + 1, ::thisnode))
156	\|\| !strcmp (val, ::thisnode))
157	goto retry;
158
159	continue;
160	}
161
162	// truly global
163	if (!strcmp (var, "loglevel"))
164	{
165	loglevel l = string_to_loglevel (val);
166
167	if (l != L_NONE)
168	llevel = l;
169	else
170	slog (L_WARN, "'%s': %s, at '%s' line %d", val, UNKNOWN_LOGLEVEL, fname, line);
171	}
172
173	// per config
174	else if (!strcmp (var, "node"))
175	{
176	default_node.id++;
177
178	node = new conf_node (default_node);
179
180	nodes.push_back (node);
181
182	node->nodename = strdup (val);
183
184	{
185	char *fname;
186	FILE *f;
187
188	asprintf (&fname, "%s/pubkey/%s", confbase, node->nodename);
189
190	f = fopen (fname, "r");
191	if (f)
192	{
193	node->rsa_key = RSA_new ();
194
195	if (!PEM_read_RSAPublicKey(f, &node->rsa_key, NULL, NULL))
196	{
197	ERR_load_RSA_strings (); ERR_load_PEM_strings ();
198	slog (L_ERR, _("unable to open public rsa key file '%s': %s"), fname, ERR_error_string (ERR_get_error (), 0));
199	exit (1);
200	}
201
202	RSA_blinding_on (node->rsa_key, 0);
203
204	fclose (f);
205	}
206	else
207	{
208	slog (need_keys ? L_ERR : L_NOTICE, _("unable to read public rsa key file '%s': %s"), fname, strerror (errno));
209
210	if (need_keys)
211	exit (1);
212	}
213
214	free (fname);
215	}
216
217	if (!::thisnode \|\| !strcmp (node->nodename, ::thisnode))
218	thisnode = node;
219	}
220	else if (!strcmp (var, "private-key"))
221	prikeyfile = strdup (val);
222	else if (!strcmp (var, "ifpersist"))
223	{
224	if (!strcmp (val, "yes"))
225	ifpersist = true;
226	else if (!strcmp (val, "no"))
227	ifpersist = false;
228	else
229	slog (L_WARN,
230	_("illegal value for 'ifpersist', only 'yes' or 'no' allowed, at '%s' line %d"),
231	var, fname, lineno);
232	}
233	else if (!strcmp (var, "ifname"))
234	ifname = strdup (val);
235	else if (!strcmp (var, "rekey"))
236	rekey = atoi (val);
237	else if (!strcmp (var, "keepalive"))
238	keepalive = atoi (val);
239	else if (!strcmp (var, "mtu"))
240	mtu = atoi (val);
241	else if (!strcmp (var, "if-up"))
242	script_if_up = strdup (val);
243	else if (!strcmp (var, "node-up"))
244	script_node_up = strdup (val);
245	else if (!strcmp (var, "node-down"))
246	script_node_down = strdup (val);
247
248	/* node-specific, non-defaultable */
249	else if (node != &default_node && !strcmp (var, "hostname"))
250	{
251	free (node->hostname);
252	node->hostname = strdup (val);
253	}
254
255	/* node-specific, defaultable */
256	else if (!strcmp (var, "port"))
257	node->port = atoi (val);
258	else if (!strcmp (var, "router-priority"))
259	node->routerprio = atoi (val);
260	else if (!strcmp (var, "connect"))
261	{
262	if (!strcmp (val, "ondemand"))
263	node->connectmode = conf_node::C_ONDEMAND;
264	else if (!strcmp (val, "never"))
265	node->connectmode = conf_node::C_NEVER;
266	else if (!strcmp (val, "always"))
267	node->connectmode = conf_node::C_ALWAYS;
268	else
269	slog (L_WARN,
270	_("illegal value for 'connectmode', use one of 'ondemand', 'never' or 'always', at '%s' line %d"),
271	var, fname, lineno);
272	}
273	else if (!strcmp (var, "inherit-tos"))
274	{
275	if (!strcmp (val, "yes"))
276	node->inherit_tos = true;
277	else if (!strcmp (val, "no"))
278	node->inherit_tos = false;
279	else
280	slog (L_WARN,
281	_("illegal value for 'compress', only 'yes' or 'no' allowed, at '%s' line %d"),
282	var, fname, lineno);
283	}
284
285	else if (!strcmp (var, "compress"))
286	{
287	if (!strcmp (val, "yes"))
288	node->compress = true;
289	else if (!strcmp (val, "no"))
290	node->compress = false;
291	else
292	slog (L_WARN,
293	_("illegal value for 'compress', only 'yes' or 'no' allowed, at '%s' line %d"),
294	var, fname, lineno);
295	}
296
297	// unknown or misplaced
298	else
299	{
300	slog (L_WARN,
301	_("unknown or misplaced variable `%s', at '%s' line %d"),
302	var, fname, lineno);
303	}
304	}	564	}
305		565
306	fclose (f);	566	fclose (f);
		567
		568	parse_argv ();
307	}	569	}
308	else	570	else
309	{	571	{
310	slog (L_ERR, _("unable to read config file '%s': %s"), fname, strerror (errno));	572	slog (L_ERR, _("unable to read config file '%s': %s"), fname, strerror (errno));
311	exit (1);	573	exit (EXIT_FAILURE);
312	}	574	}
313		575
314	free (fname);	576	free (fname);
315		577
316	fname = config_filename (prikeyfile, "hostkey");	578	fname = conf.config_filename (conf.prikeyfile, "hostkey");
317		579
318	f = fopen (fname, "r");	580	f = fopen (fname, "r");
319	if (f)	581	if (f)
320	{	582	{
321	rsa_key = RSA_new ();	583	conf.rsa_key = RSA_new ();
322		584
323	if (!PEM_read_RSAPrivateKey (f, &rsa_key, NULL, NULL))	585	if (!PEM_read_RSAPrivateKey (f, &conf.rsa_key, NULL, NULL))
324	{	586	{
325	ERR_load_RSA_strings (); ERR_load_PEM_strings ();	587	ERR_load_RSA_strings (); ERR_load_PEM_strings ();
326	slog (L_ERR, _("unable to read private rsa key file '%s': %s"), fname, ERR_error_string (ERR_get_error (), 0));	588	slog (L_ERR, _("unable to read private rsa key file '%s': %s"), fname, ERR_error_string (ERR_get_error (), 0));
327	exit (1);	589	exit (EXIT_FAILURE);
328	}	590	}
329		591
330	RSA_blinding_on (rsa_key, 0);	592	require (RSA_blinding_on (conf.rsa_key, 0));
331		593
332	fclose (f);	594	fclose (f);
333	}	595	}
334	else	596	else
335	{	597	{
336	slog (need_keys ? L_ERR : L_NOTICE, _("unable to open private rsa key file '%s': %s"), fname, strerror (errno));	598	slog (need_keys ? L_ERR : L_NOTICE, _("unable to open private rsa key file '%s': %s"), fname, strerror (errno));
337		599
338	if (need_keys)	600	if (need_keys)
339	exit (1);	601	exit (EXIT_FAILURE);
		602	}
		603
		604	if (need_keys && ::thisnode
		605	&& conf.rsa_key && conf.thisnode && conf.thisnode->rsa_key)
		606	if (BN_cmp (conf.rsa_key->n, conf.thisnode->rsa_key->n) != 0
		607	\|\| BN_cmp (conf.rsa_key->e, conf.thisnode->rsa_key->e) != 0)
		608	{
		609	slog (L_NOTICE, _("private hostkey and public node key mismatch: is '%s' the correct node?"), ::thisnode);
		610	exit (EXIT_FAILURE);
340	}	611	}
341		612
342	free (fname);	613	free (fname);
343	}
344		614
		615	for (configuration::node_vector::iterator i = conf.nodes.begin(); i != conf.nodes.end(); ++i)
		616	(*i)->finalise ();
		617	}
		618
		619	char *
345	char configuration::config_filename (const char name, const char *dflt)	620	configuration::config_filename (const char name, const char dflt)
346	{	621	{
347	char *fname;	622	char *fname;
348		623
349	asprintf (&fname, name ? name : dflt, ::thisnode);	624	asprintf (&fname, name ? name : dflt, ::thisnode);
350		625
…		…
354	asprintf (&fname, "%s/%s", confbase, rname);	629	asprintf (&fname, "%s/%s", confbase, rname);
355	free (rname);	630	free (rname);
356	}	631	}
357		632
358	return fname;	633	return fname;
		634	}
		635
		636	void
		637	conf_node::print ()
		638	{
		639	printf ("%4d fe:fd:80:00:0%1x:%02x %c %-8.8s %-10.10s %02x %s%s%d\n",
		640	id,
		641	id >> 8, id & 0xff,
		642	compress ? 'Y' : 'N',
		643	connectmode == C_ONDEMAND ? "ondemand"
		644	: connectmode == C_NEVER ? "never"
		645	: connectmode == C_ALWAYS ? "always"
		646	: connectmode == C_DISABLED ? "disabled"
		647	: "",
		648	nodename,
		649	protocols,
		650	hostname ? hostname : "",
		651	hostname ? ":" : "",
		652	hostname ? udp_port : 0
		653	);
359	}	654	}
360		655
361	void	656	void
362	configuration::print ()	657	configuration::print ()
363	{	658	{
…		…
367	printf (_("MTU: %d\n"), mtu);	662	printf (_("MTU: %d\n"), mtu);
368	printf (_("rekeying interval: %d\n"), rekey);	663	printf (_("rekeying interval: %d\n"), rekey);
369	printf (_("keepalive interval: %d\n"), keepalive);	664	printf (_("keepalive interval: %d\n"), keepalive);
370	printf (_("interface: %s\n"), ifname);	665	printf (_("interface: %s\n"), ifname);
371	printf (_("primary rsa key: %s\n"), prikeyfile ? prikeyfile : "<default>");	666	printf (_("primary rsa key: %s\n"), prikeyfile ? prikeyfile : "<default>");
372	printf (_("rsa key size: %d\n"), rsa_key ? RSA_size (rsa_key) : -1);	667	printf (_("rsa key size: %d\n"), rsa_key ? RSA_size (rsa_key) * 8 : -1);
373	printf ("\n");	668	printf ("\n");
374		669
375	printf ("%4s %-17s %s %-8.8s %-10.10s %s\n",	670	printf ("%4s %-17s %s %-8.8s %-10.10s %04s %s\n",
376	_("ID#"), _("MAC"), _("Com"), _("Conmode"), _("Node"), _("Host:Port"));	671	_("ID#"), _("MAC"), _("Com"), _("Conmode"), _("Node"), _("Prot"), _("Host:Port"));
377		672
378	for (node_vector::iterator i = nodes.begin (); i != nodes.end (); ++i)	673	for (node_vector::iterator i = nodes.begin (); i != nodes.end (); ++i)
379	(*i)->print ();	674	(*i)->print ();
380		675
381	printf ("\n");	676	printf ("\n");
382	}	677	}
383		678
384	void	679	configuration::configuration ()
385	conf_node::print ()
386	{	680	{
387	printf ("%4d fe:fd:80:00:0%1x:%02x %c %-8.8s %-10.10s %s%s%d\n",	681	asprintf (&confbase, "%s/gvpe", CONFDIR);
388	id,
389	id >> 8, id & 0xff,
390	compress ? 'Y' : 'N',
391	connectmode == C_ONDEMAND ? "ondemand" :
392	connectmode == C_NEVER ? "never" :
393	connectmode == C_ALWAYS ? "always" : "",
394	nodename,
395	hostname ? hostname : "",
396	hostname ? ":" : "",
397	hostname ? port : 0
398	);
399	}
400		682
		683	init ();
		684	}
		685
		686	configuration::~configuration ()
		687	{
		688	cleanup ();
		689	}
		690

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Comparing gvpe/src/conf.C (file contents): Revision 1.3 by pcg, Sun Mar 9 12:40:18 2003 UTC vs. Revision 1.54 by root, Tue Feb 15 13:31:23 2011 UTC

Diff Legend

Comparing gvpe/src/conf.C (file contents):
Revision 1.3 by pcg, Sun Mar 9 12:40:18 2003 UTC vs.
Revision 1.54 by root, Tue Feb 15 13:31:23 2011 UTC